I have this one:
https://www.amazon.com/FoodSaver-FM...ds=food+saver&qid=1557423174&s=gateway&sr=8-1
Don't use it very often because I buy 6 months worth of skinless chicken breasts at a time and seal them in bags of 2 or a whole ribeye and do 2 steaks in a bag.
They stay in the freezer for months with no freezer burn.
Also, it's great for saving leftover Que (if you ever have such a thing).
It's just the wife and I, so even doing one picnic for pulled pork leaves lots of leftovers. Vac bags do a great job of preserving the flavor and texture. I've had stuff that was forgotten about in the bottom of the freezer for 2 years that I thawed and ate and it tasted no worse than stuff that was only frozen for a week.
The manual seal button is a must, but I've noticed with this model you only have a few seconds window to hit that button when liquids start getting to the top of the bag. If you miss the window you have to pull the lever to unlock the lid in order to interrupt the cycle and save from wasting a bag. Once liquids get all over the area of the bag you're trying to seal its a huge PITA to get it clean enough to seal again.
I've never had good luck with wrapping stuff in saran wrap & freezer bagging it. Everything always seemed to get freezer burnt/huge ice crystals all over it even when only freezing things for a few weeks.
Food saver (or other brands) bags remove all the air in the bags so no ice crystals or freezer burn is possible. I don't want to call it "fool proof", but as long as you know how to get a decent seal, it practically is. Plus the bags are easy to throw in a tub of water to thaw, reheat in boiling water or even sou vide (SP?) bath.
Anyway that's my opinion.
***Sean "Puffy" Coals is a paid spokesperson for Food Saver****
j/k